Synthetic Group 4 Oils

[Jolly Roger VX'er]

The VX and Subaru have only had Purolators or Mobil-1 filters.

those are what I run too!

[etlsport]

x2!

[BeeVenom]

I'm thinking that if you change your oil at 3,000 miles or less, it probably doesn't matter much which synthetic you use since they're designed for long-range travel and abuse. I favor the Mobil 1 filter since it seems to outperform even the K&N synthetic filter by a good margin as far as keeping 'ugly particles' out. I have seen the website where they 'tear apart' oil filters and diagnose very closely too. Anyway, at this point, i'm still
with 0w30 Castrol "Europeon Formula" synthetic oil with the "made in Germany" notation on the bottle.
My VX doesn't use any oil whatsoever between changes so that makes me happy as well. I also use it in my '04 Dodge Ram 5.7 truck and my '90 Allante' with the Mobil 1 filter and am quite pleased.
Let's keep researching.........'til the end of time.
Scott

[etlsport]

i sent my oil out after running 3k with mobil1 10w-30 and a purolator filter for an oil report, came back all within norms with a suggestion that I could run my oil too 5k no problem

[Chopper]

I'm thinking that if you change your oil at 3,000 miles or less, it probably doesn't matter much which synthetic you use since they're designed for long-range travel and abuse. I favor the Mobil 1 filter since it seems to outperform even the K&N synthetic filter by a good margin as far as keeping 'ugly particles' out. I have seen the website where they 'tear apart' oil filters and diagnose very closely too. Anyway, at this point, i'm still
with 0w30 Castrol "Europeon Formula" synthetic oil with the "made in Germany" notation on the bottle.
My VX doesn't use any oil whatsoever between changes so that makes me happy as well. I also use it in my '04 Dodge Ram 5.7 truck and my '90 Allante' with the Mobil 1 filter and am quite pleased.
Let's keep researching.........'til the end of time.
Scott

Ditto.....I use none between changes

[BeeVenom]

Hey, check out JHarris' post on NAPA synthetics. I don't think you'll ever find a synthetic at the price of $2.00. What a great price and i'm pretty sure it's made by Valvoline!
Scott

[JHarris1385]

Awesome. I am very tempted to by the whole shelf. It looks good....

[WormGod]

I have been considering going with Royal Purple since I started using it in my WRX. I have been very pleased with it and in all sincerity *DO* feel a difference between that and the Valvoline I used to use.

Considering the VX gets 3k miles on it a year, the price of RP is worth it if I switch over. Currently the VX gets Valvoline SynPower, but by this spring, she goes Purple.

Typically, the only CONS I have and ever hear about are the price of RP. Other than that, it is pretty solid in my book.